Example inputPOST /api/v1/x402/choice-index
{
"length": 5,
"seed": "agent-42"
}Portable intent card · agent-ops-math
Choice Index API for agents
Deterministic index from seed into [0,length). Call when you need stable A/B assignment without shared RNG state. Returns index, length, ok for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.
Intent to transaction
One command, attributed.
The source header follows this discovery route through challenge, payment and delivery without exposing the buyer or request body.
npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/choice-index -m POST -H 'x-delx-source: intent-card-choice-index-api' --max-amount 0.001 -b '{"length":5,"seed":"agent-42"}'Agent discoverydelx/intent-card/v1
{
"intent": "Choice Index for an agent workflow",
"tool_name": "util_choice_index",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/choice-index-api.json"
}Portable and inspectable